Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine, using a real-time clock (RTC) included in a microcontroller, that a modem module is to exit a power saving mode; instruct a load switch to connect the modem module to a battery of the UE based at least in part on the determination; and instruct the modem module to exit the power saving mode based at least in part on the determination. Numerous other aspects are provided.

Abstract: A control method of multi-phase converters, wherein the multi-phase converter includes a plurality of switching circuits coupled in parallel between an input voltage and a load. The control method includes: comparing a feedback signal with a reference signal to generate a comparison signal, wherein the feedback signal is indicative of an output voltage provided to the load; determining the number of switching circuits for power operation based on the load current; detecting a period of the comparison signal; comparing the detected period of the comparison signal with a time threshold to determine whether a transient rise of load current has occurred; and getting all the switching circuits into power operation if a transient rise of load current is detected.

Abstract: A power converter and a dead-time controller for a power converter. The power converter includes a first power switching element through which an input voltage is applied, a second power switching element connected to the first power switching element through a switching node, an output circuit coupled to the switching node, a control switching element configured to control the first power switching element and the second power switching element through a first control node connected to the first power switching element and a second control node connected to the second power switching element, and a control assist unit configured to control the control switching element on the basis of voltages of the switching node and the first control node or voltages of the switching node and the second control node.

Abstract: A switch frequency control apparatus comprises a timer coupled between a bias voltage and ground, wherein the timer comprises a first input configured to receive a ramp, a second input configured to receive a threshold voltage and an output configured to be connected to an input of a PWM circuit, wherein the output of the timer is used for setting either a constant on-time or a constant off-time of a power converter and a threshold generator coupled between the bias voltage and ground, wherein the threshold generator is configured to receive a plurality of control signals of the power converter and generate the threshold voltage based upon a duty cycle of the power converter.

Abstract: A method comprises detecting an input voltage and an output voltage of a buck-boost converter, wherein the buck-boost converter comprises a first high-side switch and a first low-side switch connected in series across an input capacitor, a second high-side switch and a second low-side switch connected in series across an output capacitor and an inductor coupled between a common node of the first high-side switch and the first low-side switch, and a common node of the second high-side switch and the second low-side switch and configuring the buck-boost converter such that at least one of the first high-side switch and second low-side switch operates at a fixed duty cycle mode.

Abstract: A switching regulator includes a switching element, a first error amplification circuit amplifying a difference between a voltage based on an output voltage and a first reference voltage and providing a first error voltage, a clamp circuit generating a second error voltage at an output node based on the first error voltage and a second reference voltage, a PFM comparison circuit comparing the second error voltage and the second reference voltage to output a comparison result, an oscillation circuit providing and stopping a clock signal according to the comparison result, and a PWM conversion circuit turning on/off the switching element based on the second error voltage and the output of the oscillation circuit. The clamp circuit clamps a lower limit value of the second error voltage to a voltage obtained by subtracting a prescribed voltage from the second reference voltage.

Abstract: An over current protecting circuit, used with a switching converter having a switch, having: a current limiting circuit, configured to receive a limit indicating signal and to provide an on time signal to control an on time period of the switch based on the limit indicating signal, wherein if the limit indicating signal indicates a current flowing through the switch of the switching converter is larger than a limiting threshold, the on time period of a next switching cycle of the switch is subtracted with a first period, otherwise, the on time period of the switch of the next switching cycle is added with a second period; wherein a maximum on time period of the switch is fixed to be an on time reference.

Abstract: An adaptive gate driver for a driving a power MOSFET to switch is disclosed. The adaptive gate driver includes a load sense circuit to sense a current through the power MOSFET. A controller coupled to the load sense circuit compares the sensed current to a threshold to determine if the load on the power MOSFET is a normal load or a heavy load. Based on the comparison, the controller controls the gate driver to drive the power MOSFET with a first strength level when a normal load determined and at second strength level when a heavy load is determined. The driving strength in the heavy-load condition is lower than the normal-load condition and by lowering the driving strength of the gate driver during the heavy-load condition a voltage across the power MOSFET may be prevented from exceeding a threshold related to a breakdown condition during a switching period.

Abstract: An apparatus, such as a haptic-enabled device, and a method for providing boost protection logic are presented. The method comprises receiving, by a control circuit of the apparatus, a nonzero drive signal to be used by the haptic actuator to generate a haptic effect. The control circuit causes a first portion of the nonzero drive signal to be applied to the haptic actuator in a boost mode. The control circuit detects a boost duration exceeding a first defined time threshold, such as a boost timeout threshold, or detects an accumulated boost time exceeding the first defined time threshold. In response, the control circuit causes a second portion of the nonzero drive signal to be applied to the haptic actuator in an amplitude-limited mode.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine, using a real-time clock (RTC) included in a microcontroller, that a modem module is to exit a power saving mode; instruct a load switch to connect the modem module to a battery of the UE based at least in part on the determination; and instruct the modem module to exit the power saving mode based at least in part on the determination. Numerous other aspects are provided.

Abstract: A wireless power transmitter circuit includes a power inverter circuit, a resonant transmitter circuit and a control circuit. The power inverter circuit converts a DC power to an AC output power which includes an AC output current. The resonant transmitter circuit, including a variable capacitor circuit, converts the AC output power to a resonant wireless power which includes a resonant current. The control circuit generates an impedance control signal according to a resonant current related signal and a current reference signal, for controlling the impedance of the variable capacitor circuit to regulate the resonant current or the AC output current substantially at a predetermined current level.

Abstract: An object of the present invention is to provide a power supply voltage stabilizing method that can suppress the performance of a switching power supply from being deteriorated even when a battery voltage varies and/or load conditions change. In a power supply voltage stabilizing method of a switching power supply including an output power MOS to which a battery voltage is supplied and a PWM feedback control unit that controls the output power MOS, the PWM feedback control unit includes a voltage feedback controller that controls on the basis of a power supply voltage output from the switching power supply and a current feedback controller that controls on the basis of a current output from the switching power supply. A variation in the battery voltage and/or a change in the load condition of the switching power supply are/is detected, and the bandwidth of the PWM feedback control unit is dynamically changed in accordance with the result of the detection.

Abstract: A switching power supply circuit, which keeps an output voltage constant highly accurately by a buck-boost action, is provided. The switching power supply circuit comprises: a switching circuit formed by combining four switching elements with a coil in the shape of H; a coil current emulation circuit for generating an output voltage VC similar to a coil current; and a control circuit which, based on a feedback voltage representing an output voltage VO of the switching circuit, and the output voltage VC, performs on-off control of the switching circuit. The coil current emulation circuit has a CR integration circuit to generate the output voltage VC similar to the coil current. One of three voltages is applied to one terminal of the CR integration circuit, while a voltage proportional to the output voltage VO is applied to the other terminal of the CR integration circuit.

Abstract: The present disclosure relates to the field of intelligent wearable technologies, and provides a power supply circuit, a power supply circuit generation method, and a power supply circuit control method. The present disclosure provides a power supply circuit, including: a bandgap voltage reference Bandgap, a real-time detection and control module, and an alternate voltage source module, where the real-time detection and control module adjusts an output point voltage of the alternate voltage source module according to an output voltage of the Bandgap; and when the output point voltage of the alternate voltage source module reaches a target voltage, the real-time detection and control module closes the Bandgap and supplies power by using the alternate voltage source module.

Abstract: There are provided the same number of inverter modules as the number of phases of a motor, and an inverter control unit that generates PWM signals used to drive the inverter modules in PWM. Three phase outputs from each of the inverter modules are coupled to form a phase output signal for one phase of the motor while capacitors are mounted between control GNDs of the inverter modules and power GNDs of the inverter modules. Consequently, even if a surge voltage is generated in a GND wiring at the time of a switching operation of switching elements in the inverter modules, the application of the surge voltage to the switching elements can be suppressed.

Abstract: An apparatus having an analog-to-digital converter with an increased effective resolution is disclosed. The apparatus includes a signal processing functional block and an analog-to-digital conversion block. The signal processing functional block includes a controller for providing a set of digital control signals according to a set of digital input signals received by the controller, a digital-to-analog converter for converting the digital control signals to a set of corresponding analog control signals, and a physical hardware unit for performing a specific function according to the analog control signals. The analog-to-digital conversion block includes an adder for adding a dither signal to an analog feedback signal originated from the physical hardware unit, an ADC for converting sums of dither signals and analog feedback signals to a set of oversampled digital control signals to be fed into the controller.

Abstract: System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time.

Abstract: System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time.

Abstract: A switching power conversion apparatus includes: a multi-level power stage, a PWM control circuit, a multi-level driver circuit, a bootstrap capacitor control circuit and a driving power control circuit. The bootstrap capacitor control circuit includes bootstrap capacitor control switches. During a charging period, a bootstrap control signal controls the bootstrap capacitor control switches, to electrically connect a second bootstrap node to the ground voltage level, whereby the supply voltage charges the bootstrap capacitor via the bootstrap diode. During a pumping period, the bootstrap control signal controls the bootstrap capacitor control switches to electrically connect the second bootstrap node to one of the upper-gate nodes or the switching node, whereby the voltage of the first bootstrap node is pumped to a corresponding pumping voltage level.

Abstract: An apparatus that includes a first device connected to an inductor. The first device includes a first silicon carbide (SiC) junction gate field-effect transistor (JFET), a first SiC schottky barrier diode (SBD) connected to a gate and a drain of the first SiC JFET, and a first silicon (Si) transistor connected to transmit current to a source of the first SiC JFET. An inductor input terminal is connected to the drain of the first SiC JFET.

Abstract: A device includes a semiconductor die. The semiconductor die has formed thereon a plurality of multi-phase voltage regulator modules of the same design formed on a common semiconductor substrate.

Abstract: Described herein are systems and methods for providing a variable switching frequency for a power supply. The system includes a controller and a filter. The controller generates a switching frequency for a power supply. The switching frequency is modified as a function of an input voltage and an output voltage. The filter provides the output voltage to a load based at least in part on the switching frequency generated by the controller. In one example, the controller adaptively modifies the switching frequency as a function of the input voltage and the output voltage in order to maintain a peak to peak current for an inductor.

Abstract: A power converter comprises a first switch and a second switch connected in series between an input power source and ground, an inductor connected between a common node of the first switch and the second switch, and an output capacitor and a comparator having a first input connected to a reference, a second input configured to receive a sum of a first feedback signal and a second feedback signal and an output configured to generate a turn-on signal of the first switch, wherein the first feedback signal is proportional to an voltage across the output capacitor and the second feedback signal is generated by applying at least one low-pass filter to a switching ripple voltage.

Abstract: A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) prefluxing the inductor then charging the capacitor causing an increased current to flow in the inductor and (2) prefluxing the inductor then discharging the capacitor causing increased current to flow in the inductor. The inductor prefluxing steps enable the circuit to provide increased output voltage and/or increased output current.

Abstract: A controller for use in a switched mode power converter includes a comparator coupled to compare an output sense signal representative of an output of the switched mode power converter to a target value. A ripple compensation block is coupled to generate a compensation signal in response to the output sense signal. The compensation signal is a fraction of the output sense signal. A request control is coupled to generate a request signal having a request frequency in response to an output of the comparator and a clock signal to control an operational state of a power switch of the switched mode power converter. The request control is further coupled to receive the compensation signal to modulate the request frequency of the request signal with the compensation signal in response to the output of the comparator to provide ripple compensation at the output of the switched mode power converter.

Abstract: A power converter can be implemented with a boosted-output inverter, which integrates the functionality of a voltage converter (e.g., boost converter) and a voltage inverter. In particular, a boosted-output inverter includes a primary tank inductor coupled in series with a secondary tank inductor at a central node. The boosted-output inverter also includes two voltage-controlled switches that respectively define a charging phase and a discharging phase of the primary tank inductor. While the primary tank inductor is charging, the secondary tank inductor is inverted to ground. In this manner, current though the secondary tank inductor alternates at a voltage boosted by the fly-back voltage of the primary tank inductor exhibited when the primary tank inductor transitions from the charging mode to the discharging mode. In many cases, the secondary tank inductor is a transmit coil of a transmitter of a wireless power transfer system.

Abstract: A feedback system that can control hybrid regulator topologies that have multiple converters or regulators connected in series is described. The hybrid regulator can include at least two regulators: a switched inductor regulator and a switched-capacitor regulator. The feedback system can simplify feedback design for the hybrid regulator that can include multiple converter stages and can control the feedback to improve the efficiency of a hybrid regulator.

Abstract: A power supply apparatus includes first through M-th switching regulators, first through N-th multiplexers, and first through N-th linear regulators, where each of M and N is a natural number greater than or equal to two. The first through M-th switching regulators generate first through M-th reference power signals using an input power signal. The first through N-th multiplexers select one of the first through M-th reference power signals, in response to a power selection signal, to provide first through N-th selection power signals. The first through N-th linear regulators generate first through N-th output power signals using the first through N-th selection power signals. The first through N-th linear regulators are connected to the first through N-th multiplexers, respectively.

Abstract: A switching power supply detects a short circuit to ground, for example, by comparing a soft-start voltage Vss with a feedback voltage Vfb while securing an offset voltage ?V. The switching power supply includes, for example, a short-circuit-to-ground detection circuit which detects a short circuit to ground at a monitoring target terminal. When a short circuit to ground occurs for the first time, the output of the short-circuit-to-ground detection circuit is masked for a first period. When a short circuit to ground occurs for the second or any succeeding time, the output of the short-circuit-to-ground detection circuit is masked for a second period shorter than the first period.

Abstract: An electrostatic discharge protection circuit is proposed comprising a series connection of a pull-up resistor and a trigger device, connecting a first and a second supply terminal. A coupling device is connected between the first and the second supply terminal, and further connected to the series connection so as to generate at an output a compensation voltage depending on a trigger voltage of the trigger device. A discharge device for discharging current from an electrostatic discharge event is connected between the first and second supply terminal and connected to the output of the coupling device, and operating in response to the compensation voltage.

Abstract: Systems and methods for a reconfigurable DC-DC converter are disclosed. In one embodiment, a system includes: a capacitor; a first switch circuit electrically coupled in parallel to the capacitor; a second switch circuit electrically coupled in parallel to the capacitor; and a control circuit electrically coupled to the first switch circuit and the second switch circuit to switch the switch circuits at one of at least two different frequencies to convert an input voltage to an output voltage, wherein the control circuit controls the first switch circuit and second switch circuit to operate in a plurality of modes to output a desired current range.

Abstract: In described examples of methods and control circuitry to control a multi-level power conversion system with a flying capacitor, a power circuit regulates a regulator input voltage signal to provide a supply voltage signal to the control circuitry. A power switching circuit couples the regulator input to a first terminal of the flying capacitor in response to a second terminal of the flying capacitor being coupled to a reference voltage node in a given switching cycle, and couples the regulator input to the second terminal in response to the first terminal being coupled to an input node of the power conversion system in the given switching cycle.

Abstract: In a switching regulator, a first switch and a second switch are turned ON and OFF complementarily according to an output voltage. In a step-up/down mode, a third switch and a fourth switch are turned ON and OFF complementarily while the ON-duty D of the third switch is kept fixed.

Abstract: A composite smoothing inductor that can respond to an increasing demand for downsizing, a higher driving frequency, and the like has a coupling transformer, a first smoothing inductor, a second smoothing inductor on a substrate in a concentrated manner. Two input terminals are connected to the coupling transformer. One output part of the coupling transformer is connected to the first smoothing inductor, and another output part of the coupling transformer is connected to the second smoothing inductor. The first smoothing inductor and second smoothing inductor are each connected to an output terminal. The mutual inductance of the coupling transformer is higher than the self-conductance of the first smoothing inductor and the self-conductance of the second smoothing inductor.

Abstract: A method and apparatus for controlling a step-down converter, including setting an on-state time (TON) to a default TON; switching, when an output voltage of the step-down converter falls below a reference output voltage, the step-down converter to an on-state for a duration of the TON; and switching, at the end of the TON, the step-down converter to an off-state for a minimum off-state time (TOFF).

Abstract: Embodiments of the invention provide a power device. The power device comprises a switch mode power conversion circuit with power semiconductors for driving a load in response to a control signal, a controller coupled to the switch mode power conversion circuit to generate the control signal based on a predetermined current profile to be provided to the load and a maximum junction temperature of the power semiconductors, and a current injector coupled to the switch mode power conversion circuit and the controller for generating an offset current. The switch mode power conversion circuit is controlled to output the predetermined current profile or an adjusted current profile in response to the control signal, and the adjusted current profile has an offset with respect to the predetermined current profile.

Abstract: A power converting device and a method thereof are provided. The power converting device includes a filter circuit, a zero-crossing comparison circuit, a counting circuit, a logic circuit, an oscillation circuit, and a control circuit. The zero-crossing comparison circuit outputs a zero-crossing signal when an inductor current is equal to a zero current. The counting circuit counts a time interval between two consecutive time points at which the inductor currents are equal to the zero current in a low power mode. When the logic circuit determines that the time interval is greater than a first time threshold, the control circuit transmits a first oscillating signal to the filter circuit from the oscillation circuit; otherwise, it outputs a second oscillating signal; it outputs a pulse-skipping mode signal when the interval time is less than a second time threshold.

Abstract: A power conversion device includes: a power conversion unit composed of a power conversion circuit having switching elements, an output current measurement unit, an output voltage measurement unit, and reactor; a voltage command generating unit for generating a voltage command; a dead time correction unit for calculating a dead time correction amount for correcting voltage error, between the voltage command and output voltage, caused due to dead time; and a PWM signal generating unit for generating switching signals according to the voltage command and the dead time correction amount, wherein the dead time correction unit calculates the dead time correction amount from the voltage command, the measured output voltage, and the measured output current.

Abstract: The present disclosure provides an asymmetric switching capacitor regulator that is capable of providing an output voltage, covering a wide voltage range, with a high efficiency. The disclosed switching capacitor regulator is configured to generate a wide range of an output voltage by differentiating a voltage across one or more switching capacitors from a voltage across the rest of the switching capacitors in the switching capacitor regulator.

Abstract: A phase compensation circuit, being for compensating phase of a first voltage inputted to a PWM comparator of a DC/DC converter having a sleep mode, includes: a phase compensation resistor part including a resistor; a phase compensation capacitor part including a plurality of capacitors; and a switch group arranged to change over the capacitors, in the sleep mode, to a first connection state in which at least one of the capacitors is charged with a first bias voltage and to change over the capacitors, at cancellation of the sleep mode, to a second connection state in which the first voltage is set to a desired initial value.

Abstract: Methods and apparatus for a DC-DC converter having input voltage feedforward for reducing the effects of input voltage signal transients. In embodiments, a feedback circuit receives an output voltage and generates a feedback signal and a modulation circuit receives the feedback signal and generates a control signal for a switching element for generating the output voltage, which is boosted from an input voltage. A feedforward module combines a slope compensation signal, the input voltage, and current information for an inductive energy storage element, which forms a boost circuit for generating the output voltage and generates a ramp signal to the modulation circuit. A duty cycle of the control signal is proportional to an impedance compensation input, inversely proportional to the slope compensation and the input voltage, and inversely proportional to the inductor current.

Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.

Abstract: A short-circuit protected power supply circuit includes a switching power supply and a short-circuit sense/protection circuit. The switching power supply includes a synchronous rectifier, an output inductor, and an output capacitor. The synchronous rectifier is responsive to a synchronous rectifier control signal to selectively switch between an ON state and an OFF state. The output inductor and output capacitor are electrically connected in series with each other and are electrically connected in parallel with the synchronous rectifier. An output node is located between the output inductor and output capacitor. The short-circuit sense/protection circuit is coupled to the output node and is configured, upon a voltage magnitude at the output node being less than a predetermined voltage magnitude, to cause the synchronous rectifier control signal to switch the synchronous rectifier to, or keep it in, the OFF state.

Abstract: A booster for a digital circuit block provides speed and reliability at lower static power supply voltages, reducing overall power consumption of the circuits. The booster includes a transistor that couples a dynamic power supply node to a static power supply and is disabled in response to a boost clock. An inductor and capacitance, which may be the block power supply shunt capacitance, coupled to the dynamic power supply resonates so that the voltage of the dynamic power supply increases in magnitude to a value greater the static power supply voltage. A boost transistor is included in some embodiments to couple an edge of the clock to the dynamic power supply, increasing the voltage rise. Another aspect of the booster includes multiple boost transistors controlled by different boost clock phases so that the resonant boost circuit is successively stimulated to increase the amount of voltage rise.

Abstract: An apparatus includes a plurality of pulse control circuits and a control circuit. A given pulse control circuit of the plurality of pulse control circuits may source a current pulse to the output power signal based on a comparison of a particular feedback signal of a plurality of feedback signals and a target voltage signal. The control circuit may offset a voltage level of each feedback signal of a first subset of the plurality of feedback signals. The first subset may exclude a first feedback signal. In response to a determination that a period of time has ended, the control circuit may offset a voltage level of each feedback signal of a second subset of the plurality of feedback signals. The second subset may include the first feedback signal and exclude a second feedback signal.

Abstract: A current sensing circuit used in a buck-boost converter having a pair of buck switches and a pair of boost switches, including: a first sensing circuit providing a detection current though a first normally-ON transistor and a second normally-ON transistor, and a second sensing circuit detecting an average of the detection current and providing a current sensing signal in accordance with the average. During a turn ON time of a first low side switch of the pair of buck switches, the detection current represents a current flowing through the first low side switch, the current sensing signal represents an output current. During a turn ON time of the second low side switch of the pair of boost switches, the detection current represents a current flowing through the second low side switch, and the current sensing signal represents an input current.

Abstract: A circuit and method are provided for recuperating energy and decreasing driver power consumption in a switching converter. An inductor is directly connected between a gate driver and a gate electrode of a switch. A first burst pulse signal is generated, wherein energy from a power source is stored in the inductor and transferred to a parasitic capacitance of the switch. A driving pulse signal is subsequently generated to the gate electrode of the switch, wherein the gate voltage is equal to the supply voltage and no balancing current flows through the inductor. After the driving pulse signal is terminated a second burst pulse signal is generated, wherein energy is accumulated in the inductive element and returned to the power source. The energy provided from the power source during the first burst pulse signal is equal to the energy returned to the power source during the second burst pulse signal.

Abstract: A buck-boost power converter and a control circuit for the buck-boost converter. The control circuit includes a buck cycle pulse width modulation module and a boost cycle pulse width modulation module respectively having a first controllable hysteresis and a second controllable hysteresis. The buck cycle pulse width modulation module can regulate the first controllable hysteresis during the buck-boost power converter transits between a buck mode and a buck-boost mode so as to eliminate or at least reduce sparks in an output voltage. The boost cycle pulse width modulation module can regulate the second controllable hysteresis during the buck-boost power converter transits between the buck-boost mode and a boost mode so as to eliminate or at least reduce sparks in the output voltage.

Abstract: A voltage regulator includes first and second bias circuits, a transistor, and a load prediction circuit. The transistor has a first current electrode coupled to a first power supply voltage terminal, a second current electrode for providing a regulated output voltage, and a control electrode. The first biasing circuit is for providing a first bias voltage to the control electrode of the transistor in response to a feedback signal generated from the regulated output voltage. The second biasing circuit is for providing a second bias voltage to the control electrode of the transistor in response to a control signal. The load current prediction circuit is coupled to the second biasing circuit. The load prediction circuit is for providing the control signal to the second biasing circuit in response to determining that a load current at the second current electrode is expected to increase.

Abstract: A power converter determines a feedback signal according to a voltage signal related to an output voltage of the power converter and a reference voltage, thereby regulating the output voltage. A control circuit and method for programming the output voltage of the power converter utilize an offset current generator to inject a current or sink a current for changing the voltage signal or the reference signal, thereby adjusting the output voltage. As a result, it gets rid of complicated circuitry but provides more steps adjustment, which reduces related costs.